I have a pretty new (2010, AsRock 890FX) motherboard with a floppy connector that only appears to support a single drive. It allows you to configure what type drive you have (3.5 vs 5.25 and 360k/720k/1.2M/1.44M), but from what I understand it only has a single controller that will only let you use the drive attached to the end of the connected cable even if the cable has multiple connectors. I've tried, and any drive connected to any other connector isn't detected. I want to be able to use both a 5.25" floppy and 3.5" floppy drive - not at the same time, but I want to be able to switch between the two without physically opening the computer and switching what is plugged in.

What's the easiest way to do this? I have a Teac FD-505 dual drive (two drives on one connector - https://gekk.info/blog/main/making-the-fd-505-floppy-drive-work.html ) but internally it's also wired so that you can only use both drives on a machine with two controllers (otherwise, the drive that isn't primary won't be recognized). I can switch which drive is "primary" using jumpers on the drive - and have been able to use the 5.25" drive by doing so.

My current best idea is to put wires from the selection jumper on that drive to a dip switch glued to the front of my case. Is there a better way to do it? Splice the 34 pin cable itself and switch some wires in it, maybe? I of course do have separate 3.5" and 5.25" drives as well.

Thanks!